Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 76, NWS Twin Cities, MN

June 13, 2017Stevens County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 13, 2017, 8:38 PM CDT for Stevens County, Minnesota. It was in force for 37 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 13, 2017, 8:38 PM CDT (01:38 UTC)
Expired: Jun 13, 2017, 9:15 PM CDT
In force: 37 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Stevens County, MN

The radar

The Aberdeen radar (KABR), 176 km from the middle of the area, began a volume at 01:38 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 13, 8:47 PM CDT	TSTM WND DMG	1 W Alberta, MN	TREES AND POWER-LINES DOWN.
Jun 13, 8:47 PM CDT	TSTM WND DMG	1 Wsw Alberta, MN	TREES AND POWER-LINES DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 13, 7:01 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.6 hours before the alert went out and 191 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 118 J/kg
Mixed-layer CIN: -325 J/kg
Mixed-layer LCL: 1575 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 279 m²/s²
0-3 km storm-relative helicity: 479 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 10.8

Open this sounding in Storm Lab

The text

As transmitted.

120 
WUUS53 KMPX 140138
SVRMPX
MNC149-140215-
/O.NEW.KMPX.SV.W.0076.170614T0138Z-170614T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
838 PM CDT TUE JUN 13 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Stevens County in west central Minnesota...

* Until 915 PM CDT

* At 838 PM CDT, severe thunderstorms were located along a line
  extending from near Trinity Lutheran Country Church to near Lake
  Hattie, moving northeast at 65 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Severe thunderstorms will be near,
  Morris around 850 PM CDT. 
  Donnelly around 855 PM CDT. 

Other locations impacted by these severe thunderstorms include
Alberta, Fish Lake and Morris Airport.

This includes U.S. Highway 59 between mile markers 169 and 177.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 200 AM CDT for west central
Minnesota.

LAT...LON 4576 9625 4576 9577 4541 9604 4541 9622
      4542 9625 4545 9624 4573 9626
TIME...MOT...LOC 0138Z 203DEG 55KT 4563 9634 4547 9612 

HAIL...<.75IN
WIND...60MPH
 
$$

BORGHOFF

2 follow-up statements

675 
WWUS53 KMPX 140150
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
850 PM CDT TUE JUN 13 2017

MNC149-140215-
/O.CON.KMPX.SV.W.0076.000000T0000Z-170614T0215Z/
Stevens MN-
850 PM CDT TUE JUN 13 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR STEVENS COUNTY...

At 849 PM CDT, a severe thunderstorm was located over Fish Lake, or
12 miles west of Morris, moving north at 45 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

This severe storm will be near...
  Donnelly around 855 PM CDT. 

Other locations impacted by this severe thunderstorm include Alberta,
Fish Lake and Morris Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 200 AM CDT for west central
Minnesota.

LAT...LON 4576 9625 4576 9577 4541 9604 4541 9622
      4542 9625 4545 9624 4573 9626
TIME...MOT...LOC 0149Z 199DEG 39KT 4565 9616 

HAIL...<.75IN
WIND...60MPH
 
$$

BORGHOFF

500 
WWUS53 KMPX 140209
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
909 PM CDT TUE JUN 13 2017

MNC149-140219-
/O.EXP.KMPX.SV.W.0076.000000T0000Z-170614T0215Z/
Stevens MN-
909 PM CDT TUE JUN 13 2017

...THE SEVERE THUNDERSTORM WARNING FOR STEVENS COUNTY WILL EXPIRE AT
915 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

A tornado watch remains in effect until 200 AM CDT for west central
Minnesota.

LAT...LON 4576 9625 4576 9577 4541 9604 4541 9622
      4542 9625 4545 9624 4573 9626
TIME...MOT...LOC 0209Z 203DEG 55KT 4593 9599 

$$

BORGHOFF

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 13, 7:30 PM CDT	Severe Thunderstorm Warning	MPX	Stevens	33 min
Jun 13, 8:12 PM CDT	Special Weather Statement	MPX	Lac qui Parle	48 min
Jun 13, 8:49 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope	41 min
Jun 13, 9:58 PM CDT	Special Weather Statement	MPX	Todd	47 min
Jun 13, 10:43 PM CDT	Special Weather Statement	MPX	Brown, Redwood, Renville	62 min
Jun 13, 11:02 PM CDT	Special Weather Statement	MPX	Martin, Watonwan	58 min
Jun 13, 11:13 PM CDT	Special Weather Statement	MPX	Brown, McLeod, Nicollet, Sibley	47 min
Jun 13, 11:29 PM CDT	Special Weather Statement	MPX	Blue Earth, Faribault	46 min
Jun 13, 11:43 PM CDT	Special Weather Statement	MPX	Carver, Dakota, Hennepin, Ramsey, Scott	62 min
Jun 14, 12:00 AM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, Scott	45 min
Jun 14, 12:17 AM CDT	Special Weather Statement	MPX	Anoka	43 min
Jun 14, 12:25 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Dakota, Hennepin, Ramsey, Washington	50 min
Jun 14, 12:38 AM CDT	Special Weather Statement	MPX	Dakota, Goodhue	52 min
Jun 14, 12:43 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice	47 min
Jun 14, 12:54 AM CDT	Special Weather Statement	MPX	Steele	36 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2017 Every severe thunderstorm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.